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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 158 (1999), S. 618-623 
    ISSN: 1432-1076
    Keywords: Key words Alanine aminotransferase ; Aspartate aminotransferase ; γ-Glutamyl transferase ; Oestrogens ; Turner syndrome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We evaluated whether hepatic abnormalities represent a specific feature in girls with Turner syndrome (TS) or whether they are related to an increased susceptibility to hormonal therapies and/or other factors. Alanine aminotransferase, aspartate aminotransferase and γ-glutamyl transferase were monitored in 70 patients with TS for a mean period of 7.6 ± 4.2 years. An increase in serum liver enzymes was observed in 14 out of 70 girls (20%) at a mean age of 12.7 years; it was present at entry before hormonal therapy in 3 girls and developed thereafter during the follow up in the other 11. The increase in serum liver enzymes was never observed before the age of 7 years. In the majority of cases (10/14) it was drug related: in 50% the liver abnormalities were transient and self-limiting, in the remaining cases they required interruption of hormonal therapy. Hepatotoxicity was more frequently observed in girls treated with oestrogens or oxandrolone than in those treated with growth hormone. In a small number of cases, liver disease was either auto-immunity-related (2/14), or cryptogenic (1/14) with a benign and self-limiting course. Obesity was a frequent finding, but it played a likely pivotal role only in one patient. Conclusion Hepatic abnormalities are relatively frequent in Turner syndrome and surveillance of liver function should be included in the management of these patients independent of initiation of hormonal treatment.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Space science reviews 79 (1997), S. 475-485 
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Cluster ground segment design and mission operations concept have been defined according to the basic mission requirements, namely, to allow the transfer of the four spacecraft from the initial geostationary transfer orbit achieved at separation from the launcher into the final highly elliptical polar orbits, such that in the areas of scientific interest along their orbits, the four spacecraft will form a tetrahedral configuration with pre-defined separation distances, to be changed every six months during the mission. The Cluster mission operations will be carried out by ESA from its European Space Operations Centre; the task of merging the Principal Investigators' requests into coordinated, regular scientific mission planning inputs to ESOC will be undertaken by the Joint Science Operations Centre. The mission products will be distributed to the scientific community regularly in form of CD-ROMs. Principal Investigators will also have access to quick-look science, housekeeping telemetry and auxiliary data via an electronic network.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1590-3478
    Keywords: Anticonvulsants-blood ; epilepsy-occurrence ; drug monitoring
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Sommario In uno studio multicentrico condotto su 245 casi di epilessia di “nuova” diagnosi (trattati da meno di 3 mesi) e su 355 casi di epilessia di “vecchia” diagnosi (trattati da almeno 3 mesi)l'uso dei livelli plasmatici dei farmaci anticonvulsivanti è stato valutato in relazione alle modalità di trattamento e a problemi specifici indicati dai clinici. La percentuale di richieste di livelli plasmatici era del 75% e riguardava il 69% delle visite di follow-up nei pazienti di “nuova” diagnosi. Le percentuali erano rispettivamente del 78% e del 34% per i pazienti di vecchia diagnosi. In entrambi i casi vi era una marcata variabilità tra centri nelle percentuali di prescrizioni. Le richieste di livelli plasmatici erano più numerose nei pazienti in politerapia. Per contro, il monitoraggio dei farmaci antiepilettici non risultava influenzato dalla presenza di specifici problemi, quali il non completo controllo della crisi o la presenza di segni di tossicità farmacologica, né dall'età del paziente o dal tempo intercorso dalla formulazione della diagnosi. Da tutto ciò deriva che l'utilizzo dei livelli plasmatici dei farmaci antiepilettici nella pratica clinica è influenzato da fattori che spesso non riflettono le norme di comportamento comunemente suggerite dalla letteratura. Risultano inoltre ampiamente confermati i limiti delle metodiche attualmente in uso.
    Notes: Abstract A multi-center survey of antepileptic treatment was conducted in Italy on 245 previously untreated (“new”) patients with epilepsy and 355 patients treated for more than three months (“old” patients). Therapeutic drug monitoring (TDM) of antiepileptic drugs was evaluated in the context of routine clinical conditions, in relation to individual therapeutic problems and mode of treatment. Plasma levels (PL) were determined in 75% of “new” patients and 78% of “old” patients, with wide intercenter variability. TDM was done at 69% of the follow-up attendences for “new” patients and at 34% for “old” patients, but was apparently unrelated to specific therapeutic problems, such as poor disease control or adverse drug reactions. Plasma drug concentration measurements were made more often among patients on polytherapy. The age of the patient and the time elapsing since diagnosis did not seem to affect request patterns significantly. From these findings it appears that TDM is largerly influenced by factors unrelated to the common recommendations in the literature. In addition, the use of TDM in clinical practice reflects the limitations of the available techniques.
    Type of Medium: Electronic Resource
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